Airplane



f atented Apr. 14, 1931.

WALTER DARBYSON, F WINDS Q R, ONTARIO, CANADA AIRPLANE Application filed April 7, 1930. Serial No. 442,062.

This invention relates to airplanes and fan in the direction indicated by the arrows more particularly to devices for causing the will cause the flow of a stream of air thru vertical rise of an airplane of the heavier each semi-circular casing 18, against the unthan-air orrigid type. derside of the wing 10 and against the suit- An object of this invention is a device apably deflected vane 18, whereupon the air 50 plicable to airplanes of the class above depressure will cause elevation or rising of the scribed which, upon operative movement airplane. causes a true vertical rise of the airplane. Furthermore, when the airplane is in mo- A further object is a device which, when tion and it is desired to hover about a suitoperated will cause an airplane to remain able landing point, each fan 21 is rotated to 55 motionless,without descending. counteract the force of gravity tending to A still further object is an attachment for lower the plane. airplanes which is simple in its construction It will be understood that each vane or fin and which has means forming a part thereof 13 is movable to lie against the underside of,

to provide an auxiliary drive for the air or within the wing 10 during flight of the lane. plane so that no unnecessary air resistance is Still other objects will readily occur to offered. 7 those skilled in the art upon reference to the Furthermore, it will be noted that the profollowing description and the accompanying. pellers 22 will function as an auxiliary drivdrawings in which ing means when shafts 20 are rotated, this 5 Fig. 1 is a plan view of an airplane equipconstruction being employed, as a rule, only ped with the device of the present invention. when the main power plant is not function- Fig. 2 is a front elevation view thereof, ing properly or when additional force is departly in section along the line 2-2 of Fig. 1. sired, or when a slow or hovering speed is Referring to the drawings, there is shown nquired.

an airplane of the monoplane type having a It will be understood that the shafts 20 wing 10, fuselage 11, and the usual propeller may be rotated by separate engines or by 12. The construction thus far is conventional the main engine, usually located in the fuse p and forms-no part of the present invention. lage, connection between the main engine 3 Attached t0 the llIlClGl'SldG Of the Vlllgv the haft being had Suitalyly p 'ovidgd are vanes or fins 13 pivotally movable about gearing th lik the line indicated 14 and p e to It will also be noted that the vanes 13 may Controlled y means such as h contrifl rods be controlled from the inside or outside of the Adlaclmt each Y 13 1s a Casmg 18 wing, as desired. Furthermore, the device supported in any suitable manner, suclf1 is may be applied to any Suitable type of plane 0 2 Supports.i and i fi i 5 including monoplanes, biplanes, etc. Fur- 1 Whlcg fl a a thermore, shafts 20 may be provided with if; 3 3 en 0 W 10 l e a plyope any desired number of fan blades, the num- 40 As indicated, vanes 18, casings 18, shafts dependlng upon the load to be earned s5 20, and fan blades 21 extend transversely y P h t i along the wing and may be of a length eq l how having described t e inven ion ZLIK to Width f th i the preferred embodiment thereof, 1t 1s to be 0 understood that the ,saidinventionis to be The operation of the device will be obvious from the foregoing. Rotation of each limited, not to the specific details herein set an asses 1 forth, but only by the scope of the claim which follows.

Claim: 7

In an airplane having a wing, a fuselage centrally located beneath the wing and exten-dingtransversely thereof for a considerable distance, fan casings on the sides of said fuselage under the wing, fans in said casings mounted on shafts projecting to the rear of the wing, the shafts having propellers thereon, and vanes pivotally connected and secured to the undersurface of the wing, the fans discharging against the inclined under surfaces of the vanes.

WALTER DARBYVSON. 

